Carbureting device for internal-combustion engines.



` No. 'r3-0,608.

BATENTED JUIN-39,1903.

A. E. BEUSE. GAEBUEETING DEVICE EoE INTERNAL GUMBUS'IION ENGINES.

APPLICATION FILED MAB/7, 1902.

N0 MODEL.

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UNrTsD 'STATES atented j' une 9, 1903.

v`ljrifri,NfT Ormes,

ALANSON P. BRUSH, OF DETROITQMICHIGA.

oARBU-RETINGjnEvloE Fon I NTERNAL-COMBUSTION ENGiNE's.

SPEGIF'IcAmioN farming page gf Letters Patent No. 730,608, dated June 9,1903.

@pumas and Marcil 7, 1902.

Be it known that I, ALANSON P. BRUSH, a

citizen of the United-States, residing at Detroit, county of Wayne, State of 'Michigam have invented a certain newfand useful Improvement in Carbureting Devices for Internal-Combustion Motors; and lIdeclare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specication. Y My invention relates to a novel automatic mixing or carbureting device of superior simplicity, efficiency, and utility; and it consists of the structure hereinafter described and claimed, and illustrated in the accompanying drawings, in which- Figure l is a view in side elevation. Fig. 2 is a View in Vertical section. Fig. 3 is a plan view, and Fig. 4l is a detail view in section through the diaphragm and needle-valve.

The purpose of my invention is to provide a device ofV this character adapted to be employed with internal-combustion motors or engines.

I carry out my invention as follows:

In the drawings, a represents a case of any desired construction forming the body of the device, said case with itscap hforming an interior passage d, constituting a portion of the suction or inlet passage of an internalcombnstion motor, Said passage within the case a is formed with an enlarged part or chamber c, within which is located a baffleplate or vdiaphragme'. Com icating with the chamber d is a fuel or liqui drocarbon supply channel e, the communica being controlled by a fuel-valve f, seatigga at g, beneath the opening or.,y port lnthgroug which the passage e communicates with the passage d; .The valve f -is attached 1o the leefde-plate el and is provided with a valvestem m, loosely engaged at the lower end withv the valve. vlhe-baile-plate or diaphragm 'i and the valve are simultaneously movable.

` The lift of the diaphragm is limited by a stop or other suitable device. As shown, the stop is in the nature of an elastic or yielding stop, formed bya plugj, threaded into the cap said plug provided with a spring k at its inseriainq. 97,107. on mann ner lower end. The said stop is made adjustable, the plugj being provided with a handle Z for adjusting it in the cap b. The plug may be heldin adjusted position by a lock-nut n. The valve-steinA passes upward through the stop and is employed to lift the feed-valve to allow a supply of liquidfuel to iiow intothe inlet-passage din starting -the device. The baflie-plate or diaphragm t' is in no sense a valve and has no seat, but has a free airopening thereabout between it and the case, as shown. The air-opening thereabout is never closed, even if the stop were screwed down so as to close the fuel-valve. The diaphragm is lifted by the air carried in the passage d..A A comparatively slight iow of air through the passageA d is suflioient to lift the diaphragm against the yielding stop, thereby lifting the fuel-valve. Any increase in the flow of air by compressing the spring of the stop increases the opening of the fuel-valve, thereby automatically increasing the amount of fuel admitted as the flow of air increases, or vice versa, thus permitting the speed of the engine to vbe changed at' the will of the operator without varyingl the quality of the explosive mixture or the use of a governor to maintain a constant speed under varying loads.

The stem of the valve is provided with an offset, 'asshown at p,l to prevent the heft of the stern resting on the fuel-valve and adding its Weight thereto, inasmuch vas it is desirable to have the diaphragm and fuel-valve as light as possible.

The operation of the device will now be understood. The flow of air through the passage d strikes against the baiiie-plate or diaphragm 7l and is thereby deiected, the flow of air lifting the diaphragm thereby lifting the valve f, allowing fuel to enter the channel to be therein mixed with the air in the inl -pipe. The amount of fuel thus admitted is gulated by thek positionlof the yielding stop, allowing the diaphragm to lift the fuelvalve more or less from its seat.

What I claim as my invention isl. In a mixing device the combination of a case formed with a passage, a baiile-plate in said passage, a fuel-supply channel communicating with said passage, a Valve attached to the bafie-plate and simultaneously movable therewith to control said communication, and a yielding stop to limit the movement of the battle-plate and valve, said baffle-plate and valve having a limited movement independent of the yielding stop. y

2. In a mixing device the combination of a case formed with a passage, a battle-plate in said passage, a fuel-supply channel communicating with said passage, and a valve attached to the halide-plate and simultaneously movable therewith to control said communication, and a yielding stop tolimit the movement of the baie-plate and valve, said valve provided with a stem for lifting the valve independently of t-he action of the air on the batlle-plate,saidstem havinga limited movement independent of the movement of the valve.

y3. -In a mixing device the combination of a case formed with a passage, an unseated baffle-plate in said passage having a free airopening thereabout, a fuel-supply channel communicating with said passage, and a valve attached to said bafleplate and movable simultaneously therewith to control said communication, said valve provided with a stem projecting through the case whereby the valve may be lifted independently ofthe action ot the air upon the baffle-plate, said stem loosely engaged with the valve, said valve having a limited movement independent of the movement of the stem.

4. In a mixing device the combination of av case formed with a passage and with a cap, of a movable baille-plate in said passage, a fuel-supply channel communicating with said passage, a valve sim ultaneonsly movable with said bale-plate to control said communication, an adjustable plug in said cap, and a spring between the baffle-plate and plug, said valve provided With a stem projecting through said plug, said valve having a limited movement independent of the movement of the baffie-plate and independent of the movement ofthe stern. 5. In a mixing device the combination of a case provided With a passage forming an interior chamber, a fuel-supply channel communicating with said passage, and a valve attached to the baille-plate and actuated by the'bafl'le-plate to control'said communication, said valve provided with a stem having its Weightsupportedindependentof the valve, the baffle-plate having a limited movement independent of the movement of said stem.

6. In a mixing device the combination of a case provided with a passage forming an interior chamber, a baffle-plate in said chamber, a fuel-supply channel communicating With said passage, and a valve attached to and actuated by the baiiie-plate to control said communication, said valve provided with a stem loosely engaged at its lower end with the valve, the baille-plate having a limited movement independent ofA the movement of the valve-stem.

In testimony whereof I sign this specification in the presence of two Witnesses.

Y ALANSON P. BRUSH. Witnesses:

N. S. WRIGHT, J. M. POLAND. 

